/* 深色主题样式 */
body {
    background-color: #222;
    color: #ccc;
}

.login-container {
    background-color: #333;
}

h2 {
    color: #ccc;
}

.tab-buttons {
    background-color: #333;
}

.tablink {
    background-color: #444;
    color: #ccc;
}

.tablink.active {
    border-bottom: 2px solid #e60000;
    color: #e60000;
}

.tablink:hover {
    background-color: #e60000;
    color: white;
}

form input {
    border: 1px solid #555;
    background-color: #444;
    color: #ccc;
}

form input[type="submit"] {
    background-color: #e60000;
    color: white;
}

p a {
    color: #e60000;
}

p a:hover {
    color: #cc0000;
}